Catch the Rain where it Falls
In cities, buildings are usually constructed with rooftops of Reinforced Cement Concrete (RCC) or Mangalore Tiles.
Fresh water is essential for everyday life. We need it in all aspects of life from drinking to cooking to bathing to cleaning. Conserving this precious resource in cities is becoming a challenge today. Our cities are growing every year and with every family who moves in the water needs also go up. If we have created concrete jungles, then we need to find ways to use them to conserve water.
Rainwater harvesting is the most efficient and simple way in which we can create water reservoirs in cities and towns today. Rainwater Harvesting is a technique of collecting rainwater and storing it for use. The water can be collected from various surfaces such as rooftops and other hard surfaces over which water will run-off. It is one of the most reliable sources of water collection irrespective of where you live. There is another method of rainwater harvesting where the water is collected to recharge the groundwater. Here the water from the hard surfaces is directed to designated pits that filter the water down and allow it to percolate deeper into the soil..
Rainwater provides an independent and free water supply that can be used in many ways for everyday life. If this method is being popularised, it is because it offers a host of benefits –
Water is collected from rooftops and hard surfaces and it passes through a simple filtration system before being collected into a tank. The maintenance of the tank is also simple, and the water is fresh hence it doesn't need further treatment.
Rainwater is free of several types of pollutants and man-made contaminants such as chlorine. The water that is collected through rainwater harvesting is potable and it can be used for all household activities. A simple RO process can make this water drinkable also. For farming, this water can be used for irrigation as rainwater is free from any harmful chemicals.
Our dependence on ground water reduces when we collect and use rainwater. Using groundwater can be considered only in extreme situations and at that point there will be enough ground water to handle our needs. Digging borewells and deep wells is an expensive process and there is also damage to the environment from drawing out water in this form.
Utility bills can be drastically brought down by using rainwater harvesting. There have been instances of apartments collecting water that has lasted them for an entire month's need from a single rainfall thus reducing their utility bills considerably.
Storm water run-off has been known to cause flooding and soil erosion. Rainwater harvesting directs water into storage facilities thus reducing the amount of water run-off in the open thus protecting the soil.
Rainwater Harvesting can be implemented in both rural and urban areas and provides many benefits to individuals, communities and the environment.
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